<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>博客列表</title>
    <link rel="stylesheet" href="css/list.css">
    <link rel="stylesheet" href="css/blog_list.css">
    <style>
        
        .nav{
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 50px;
        }
        .container{
            padding-top: 80px;
            height: auto;
        }
        .container-right{
            width: auto;
        }
        .blog-pagnation-wrapper{
            height: 40px;
            margin: 16px 0;
            text-align: center;
        }
        .blog-pagnation-item{
            display: inline-block;
            padding: 8px;
            border: 1px solid #d0d0d5;
            color: #333;
        }
        .blog-pagnation-item:hover{
            background: #4e4eeb;
            color: #fff;
        }
        .blog-pagnation-item.actvie{
            background: #4e4eeb;
            color: #fff;
        }

    </style>
    <script src="js/jquery.min.js"></script>
    <script src="js/sessiontools.js"></script>
    <script src="js/urltools.js"></script>
</head>

<body>
    <!-- 导航栏 -->
    <div class="nav">
        <img src="img/logo2.jpg" alt="">
        <span class="title">我的博客系统</span>
        <!-- 用来占据中间位置 -->
        <span class="spacer"></span>
        <a id="isloginElement" href="login.html">登陆</a>

        <span id="isuserElement" >
            <a href="myblog_list.html">个人主页</a>
            <a href="blog_add.html">写博客</a>
            <a href="javascript:logout()">注销</a>
        </span>

    </div>
    <!-- 版心 -->
    <div class="container">
        <!-- 右侧内容详情 -->
        <div class="container-right" style="width: 100%;">
            <div id="artlist">
                
            </div>
            
           
            <hr>
            <div id="pageDiv" class="blog-pagnation-wrapper">
                <button class="blog-pagnation-item" onclick="doFirst()">首页</button> 
                <button class="blog-pagnation-item" onclick="doPre()">上一页</button>  
                <button class="blog-pagnation-item" onclick="doNext()">下一页</button>
                <button class="blog-pagnation-item" onclick="doLast()">末页</button>
            </div>
        </div>
    </div>
    <script>
        var pageIndex = 1;// 当前页数

        var pageSize = 2;// 每页显示数

        var pageCount = 1;// 总页数

        //初始化参数
        function doInit(){
            var paramPageSize = getParamByKey("pageSize");
            var paramPageIndex = getParamByKey("pageIndex");
            if(paramPageIndex != null){
                pageIndex = paramPageIndex;
            }
            if(paramPageSize != null){
                pageSize = paramPageSize;
            }
            doAjax();
        }
        doInit();

        //点击首页
        function doFirst(){
            if(pageIndex <= 1){
                alert("当前已在首页, 无法跳转");
                return false;
            }
            pageIndex = 1;
            location.href = "blog_list.html?pageIndex="+pageIndex+"&pageSize="+pageSize;
        }

        //点击上一页
        function doPre(){
            if(pageIndex <= 1){
                alert("抱歉: 当前已在第一页l");
                return false;
            }
            --pageIndex;
            location.href = "blog_list.html?pageIndex="+pageIndex+"&pageSize="+pageSize;
        }

        //点击下一页
        function doNext(){
            if(pageIndex >= pageCount){
                alert("抱歉: 当前已在末页");
                return false;
            }
            ++pageIndex;
            location.href = "blog_list.html?pageIndex="+pageIndex+"&pageSize="+pageSize;
        }

        //点击末页
        function doLast(){
            if(pageIndex >= pageCount){
                alert("抱歉: 当前已在末页");
                return false;
            }
            location.href = "blog_list.html?pageIndex="+pageCount+"&pageSize="+pageSize;
        }
        function doAjax(){
            //当前页面文章列表数据
            jQuery.ajax({
                url:"/art/getlistbypage",
                type:"POST",
                data:{
                    "pageIndex":pageIndex,
                    "pageSize":pageSize
                },
                success:function(res){
                    if(res.code == 200 && res.data.length > 0 ){
                        //从后端查询到数据并返回
                        var artListHtml = "";
                        for(var i = 0;i < res.data.length;i++){
                            var item = res.data[i];
                            artListHtml += '<div class="blog">';
                            artListHtml += '<div class="title">'+item.title+'</div>';
                            artListHtml += '<div class="date">'+item.createtime+'</div>';
                            artListHtml += '<div class="desc">'+item.content+'</div>';
                            artListHtml += '<a href="blog_content.html?id='+item.id+'" class="detail">查看全文 &gt;&gt;</a>';
                            artListHtml += '</div>';
                        }
                        jQuery("#artlist").html(artListHtml);
                        jQuery("#pageDiv").show();
                    }else{
                        jQuery("#pageDiv").hide();
                        jQuery("#artlist").html("<h2> 暂无文章 <h2>");
                    }
                }
            });
            //查询文章总页数
            jQuery.ajax({
                url:"/art/getcount",
                type:"POST",
                data:{},
                success:function(res){
                    if(res.code == 200 && res.data > 0){
                        //计算总页数
                        pageCount = Math.ceil(res.data/pageSize);
                    }
                }
            });
        }



        function isLogin(){
                jQuery.ajax({
                    url:"/user/islogin",
                    type:"POST",
                    data:{},
                    success:function(res){
                        if(res.code == 200 && res.data == 1){
                            //登录
                            jQuery("#isloginElement").hide()// hide() 隐藏 html 控件
                            jQuery("#isuserElement").show()// show() 显示 html 控件
                        }else{
                            jQuery("#isloginElement").show()// 
                            jQuery("#isuserElement").hide()// 
                        }
                    }
                });
            }
            isLogin();


    </script>
</body>
</html>